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DC Field | Value | Language |
---|---|---|
dc.citation.endPage | 1773 | - |
dc.citation.number | 5702 | - |
dc.citation.startPage | 1771 | - |
dc.citation.title | SCIENCE | - |
dc.citation.volume | 306 | - |
dc.contributor.author | Bargheer, M | - |
dc.contributor.author | Zhavoronkov, N | - |
dc.contributor.author | Gritsai, Y | - |
dc.contributor.author | Woo, JC | - |
dc.contributor.author | Kim, DS | - |
dc.contributor.author | Woerner, M | - |
dc.contributor.author | Elsaesser, T | - |
dc.date.accessioned | 2023-12-22T10:40:03Z | - |
dc.date.available | 2023-12-22T10:40:03Z | - |
dc.date.created | 2021-10-22 | - |
dc.date.issued | 2004-12 | - |
dc.description.abstract | Reversible structural changes of a nanostructure were measured non-destructively with subpicometer spatial and subpicosecond temporal resolution via x-ray diffraction (XRD). The spatially periodic femtosecond excitation of a gallium arsenide/aluminum gallium arsenide superlattice results in coherent lattice motions with a 3.5-picosecond period, which was directly monitored by femtosecond x-ray pulses at a 1-kilohertz repetition rate. Small changes (DeltaR/R=0.01) of weak Bragg reflexes (R=0.005) were detected. The phase and amplitude of the oscillatory XRD signal around a new equilibrium demonstrate that displacive excitation of the zone-folded acoustic phonons is the dominant mechanism for strong excitation. | - |
dc.identifier.bibliographicCitation | SCIENCE, v.306, no.5702, pp.1771 - 1773 | - |
dc.identifier.doi | 10.1126/science.1104739 | - |
dc.identifier.issn | 0036-8075 | - |
dc.identifier.scopusid | 2-s2.0-9944266185 | - |
dc.identifier.uri | https://scholarworks.unist.ac.kr/handle/201301/54639 | - |
dc.identifier.url | https://www.science.org/doi/10.1126/science.1104739 | - |
dc.identifier.wosid | 000225630800051 | - |
dc.language | 영어 | - |
dc.publisher | AMER ASSOC ADVANCEMENT SCIENCE | - |
dc.title | Coherent atomic motions in a nanostructure studied by femtosecond x-ray diffraction | - |
dc.type | Article | - |
dc.description.isOpenAccess | FALSE | - |
dc.relation.journalWebOfScienceCategory | Multidisciplinary Sciences | - |
dc.relation.journalResearchArea | Science & Technology - Other Topics | - |
dc.type.docType | Article | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordPlus | MULTIPLE-QUANTUM WELLS | - |
dc.subject.keywordPlus | ACOUSTIC PHONONS | - |
dc.subject.keywordPlus | LATTICE-DYNAMICS | - |
dc.subject.keywordPlus | STREAK-CAMERA | - |
dc.subject.keywordPlus | PULSES | - |
dc.subject.keywordPlus | SUPERLATTICES | - |
dc.subject.keywordPlus | GENERATION | - |
dc.subject.keywordPlus | EXCITATION | - |
dc.subject.keywordPlus | CRYSTAL | - |
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